Radek Kvicala
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Radek Kvicala has a total of 2 co-authors. Here are the top co-authors by number of shared publications:
- Martin Hampl
Institute of Radio Electronics, Faculty of electrical engineering and communication, Brno University of Technology, Brno, 612 00 Czech Republic
2 shared publications - Petr Kucera
Institute of Radio Electronics, Faculty of electrical engineering and communication, Brno University of Technology, Brno, 612 00 Czech Republic
2 shared publications
Latest Publications
- 1 April 2007
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 1-5
Optical Wireless Link Availability and Bit Error Ratio
In this article the determination of the time ratio of the optical wireless link (OWL) availability is considered. The possibility how to realize the bit error rate tester with El/Tl interface is presented. By means of this indicator we are able to establish the bit error ratio (BER) of the specific optical link and the percentage of link unavailability. We can determine these parameters for arbitrary time period. The influence of atmospheric attenuation on links parameters listed above is interesting. In this article the statistics of meteorological visibility for the year 2006 is also stated. With these data we can determine the percentage that the certain value of atmospheric attenuation occurs. Eventually it is shown that not only meteorological visibility is important for the OWL function.
- 1 April 2007
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 1-5
Optical Wireless Link Availability and Bit Error Ratio
In this article the determination of the time ratio of the optical wireless link (OWL) availability is considered. The possibility how to realize the bit error rate tester with El/Tl interface is presented. By means of this indicator we are able to establish the bit error ratio (BER) of the specific optical link and the percentage of link unavailability. We can determine these parameters for arbitrary time period. The influence of atmospheric attenuation on links parameters listed above is interesting. In this article the statistics of meteorological visibility for the year 2006 is also stated. With these data we can determine the percentage that the certain value of atmospheric attenuation occurs. Eventually it is shown that not only meteorological visibility is important for the OWL function.
- 1 June 2006
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 87-92
The Utilization of Two-Mode Optical Fiber in Free Space Optics Communication
In our contribution we propose using of a two-mode optical fiber as a primary source in a transmitting optical head instead of the laser diode. In the article we are interested in the distribution of the optical intensity and the complex degree of coherence in the output aperture of the lens. This aperture is irradiated by a step-index weakly guiding optical fiber. In our treatment we take into account weakly guided modes with polarization corrections to the propagation constant and unified theory of the second order coherence and polarization of electromagnetic beams.
- 1 June 2006
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 87-92
The Utilization of Two-Mode Optical Fiber in Free Space Optics Communication
In our contribution we propose using of a two-mode optical fiber as a primary source in a transmitting optical head instead of the laser diode. In the article we are interested in the distribution of the optical intensity and the complex degree of coherence in the output aperture of the lens. This aperture is irradiated by a step-index weakly guiding optical fiber. In our treatment we take into account weakly guided modes with polarization corrections to the propagation constant and unified theory of the second order coherence and polarization of electromagnetic beams.
- 1 June 2006
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 83-85
Satellite-Terrestrial (Earth) Station Optical Communication
The paper demonstrates the computation (design) of the laser beam power distribution emitted by Amsat P3D-like satellite towards the Earth surface. Amsat P3D satellite carries a laser transmitter which is used for laser signal detection research. The evaluation of the similar links availability based on the stationary FSO link parameters is presented. The special receiver, which utilizes an APD photodiode, was developed. This receiver operates in the photon counter mode. Special concept of the receiver provides detection of extremely low-level signal. The contribution includes the presentation of the performance of the receiver and its noise analysis as well.
- 1 June 2006
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 83-85
Satellite-Terrestrial (Earth) Station Optical Communication
The paper demonstrates the computation (design) of the laser beam power distribution emitted by Amsat P3D-like satellite towards the Earth surface. Amsat P3D satellite carries a laser transmitter which is used for laser signal detection research. The evaluation of the similar links availability based on the stationary FSO link parameters is presented. The special receiver, which utilizes an APD photodiode, was developed. This receiver operates in the photon counter mode. Special concept of the receiver provides detection of extremely low-level signal. The contribution includes the presentation of the performance of the receiver and its noise analysis as well.